I have no idea, but I do know of a laser treatment that makes hair grow the side effects are terrible though it results in flaky skin, getting a bunch of red spots all over your body and if you don't continue the laser treatment your hair will fall back out.
I have had laser hair removal but wasn't able to complete the treatments unfortunately because where I moved didn't have an office at my new location at the time.. but yes it works!!! I LOVED it!!! Some of my hair has grown back since I never finished but it was worth it when I had it! It is pricy though!